tau D749MA-R Notice D'installation page 19

- do not use single cables (with one single wire), ex. telephone cables, in order to avoid break-
downs of the line and false contacts;
- do not re-use old pre-existing cables;
- In case of long sections of cables (> 20 m) for N.O./N.C. controls (e.g. OPEN / CLOSE, STOP,
PEDESTRIAN, etc.), in order to avoid gate malfunctions, it will be necessary to uncouple the
various controls using RELAYS or using our 750T-RELE device.
2. INTRODUCTION
The D749MA-R board has two working modes, selectable through the J6 jumper (see wiring diagram).
J6 Jumped:
J6 Not jumped:
Once the connection is achieved, in low-energy mode, press the PROG button briefly:
• All the green LEDs must be on (each of them corresponds to a Normally Closed input). The go off
only when the controls to which they are associated are operated.
• All the red LEDs must be off (each of them corresponds to a Normally Open input). The light up
only when the controls to which they are associated are operated.
3. TECHNICAL CHARACTERISTICS
Board power supply
Max. absorption DC motor
Fast acting fuse for protection of input power supply 13,5 V AC (F4 - 5x20)
Fast acting fuse for battery charger protection (F5 - 5x20)
Fast acting fuse for protection of auxiliary circuits 18 V DC (F3 - 5x20)
Motor power supply circuits voltage
Auxiliary device circuits supply voltage
Logic circuits supply voltages
Operating temperature
4. CONNECTIONS TO TERMINAL BOARD
Terminals Function
FS1 - FS2
POWER SUPPLY
PHOTOVOLTAIC
1 - 2
SYSTEM INPUT
3 - 6
PEDESTRIAN
4 - 6 OPEN/CLOSE
5 - 6
STOP
standard mode, i.e. the control unit is powered all the time;
low-energy mode, i.e. the control unit is switched off after each operation and on
after each command (mode where power is supplied by other energy sources,
ex. batteries charged by a photovoltaic panel).
Description
24V AC control unit power supply input – Fed by the toroidal transform-
er and protected by the fuses (F 6,3A) on the 230V AC power supply.
external power input (ex. Photovoltaic system 12V DC).
NB: In the latest versions of the control boards, the voltage change
through jumper J7 is no longer necessary (make sure whether it is
present on the control board or not).
ATTENTION: POWERING THE CONTROL UNIT WITH AN EXTERNAL
SOURCE, ALL THE OTHER 24V DC OUTPUTS BECOME THE SAME AS
THE OUTSIDE VOLTAGE.
N.O. PEDESTRIAN button contact input – commands total opening and
closing of motor 1 – governed by dip-switches 2 and 3. (3= PED - 6= COM)
OPEN/CLOSE button N.O. input – Controls the opening and closing of the
automation and is regulated based on the function of dip-switches 2 and
4. (4= O/C - 6= COM)
STOP button N.C. input – Stops the automation in any position, temporarily
preventing the automatic closure, if programmed. Bridge the connectors
if not used. (5= STOP - 6= COM )
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230 V AC - 50 Hz
5 A - 24 V DC
F 16A
F 10A
F 3.15A
24V DC
24V DC
5V DC
-20 °C ÷ +55 °C